Great Twitter names that are taken and driving brand managers crazy

Sometimes, I look up a company by typing in their brand name directy after twitter.com. I wanted to mention LEGO in a quote, but found out that they are actually called @LEGO_GROUP. I wanted to ask Slack something, but found our that they are actually called @SlackHQ.

I wonder how much LEGO Group has offered this guy to give up his early bird handle: